Frank Mullen, (born January 1970) is the lead vocalist of the American death metal band Suffocation, and met fellow band mates Mike Smith and Terrance Hobbs in high school. He is recognized to be among the first to bring low-pitched vocals in death metal. His approach on Effigy of the Forgotten could be considered to be the "blueprint" to the death growls as we know it today. Unlike some death metal vocalists, his lyrics are pronounced more clearly. He achieves this by simply opening his mouth wider, but still retaining his low-pitched growls.He is featured on the Suicide Silence song "Smashed". He is also known to wave his hand to the blast beats in Suffocation's songs, which can be seen when performing live and in videos.